NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Lunar Distances with Alex's SNO-T
From: Dave Walden
Date: 2006 Nov 05, 10:25 -0800
From: Dave Walden
Date: 2006 Nov 05, 10:25 -0800
I believe the moon SD in the daily pages of the NA is the geocentric (or equivalently, 0 altitude) value at 1200UT, which is all the NA can really do, since it doesn't know your location. The effect of SD on altitude is included in the moon altitude adjustment tables at the back of the NA. (Thus, part of the adjustment depends on both altitude and HP.) I have seen "adjustments" to NA values of up to 0.1 min to minimize maximum error when using the given interpolation tables, but where might the 0.3 min differences that Frank metions be? --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
